Information processing device and information processing method

Abstract

An information processing method is provided to reduce an amount of data to be monitored in an onboard system of a vehicle. In the method, detection results that indicate whether an abnormality is included in communication data on an onboard network are obtained, and a first log transmission instruction is generated to cause periodic transmission of a first log from the onboard system to a server device. The first log is a log of some of the communication data. A second log transmission instruction is generated to cause transmission of a second log from the onboard system to the server device in a case of the detection results indicating the abnormality is included in the communication data. The second log is a log of more of the communication data than the first log.

What is claimed is: 
     
       1. An information processing device in a vehicle, the information processing device comprising:
 a processor; and 
 a memory including at least one set of instructions that, when executed by the processor, causes the processor to perform operations including:
 obtaining detection results that indicate whether an abnormality is included in communication data flowing through an onboard network of the vehicle; 
 generating a first log transmission instruction to cause periodic transmission of a first log from an onboard system in the vehicle to a device provided outside of the vehicle, the first log including, per unit time, some communication data out of all of the communication data flowing through the onboard network; and 
 generating a second log transmission instruction to cause transmission of a second log from the onboard system in the vehicle to the device provided outside of the vehicle in a case of the detection results indicating the abnormality is included in the communication data, the second log including, per unit time, more communication data out of all of the communication data than the first log, 
 
 wherein the first log includes the some communication data from intermittent periods, and 
 the second log includes the more communication data from continuous periods. 
 
     
     
       2. The information processing device according to  claim 1 ,
 wherein the detection results are obtained from the device provided outside of the vehicle. 
 
     
     
       3. The information processing device according to  claim 1 , wherein the operations further include:
 obtaining the communication data from the onboard network; and 
 determining whether the abnormality is included in the communication data. 
 
     
     
       4. The information processing device according to  claim 1 ,
 wherein the second log includes communication data that includes a plurality of identifiers, and 
 the first log includes communication data that includes one or more of the plurality of identifiers and less than all of the plurality of identifiers. 
 
     
     
       5. The information processing device according to  claim 1 , wherein the operations further include:
 transmitting the first log to the device provided outside of the vehicle in accordance with the first log transmission instruction; and 
 transmitting the second log to the device provided outside of the vehicle in accordance with the second log transmission instruction. 
 
     
     
       6. The information processing device according to  claim 1 , wherein the operations further include:
 reversibly compressing the first log in accordance with the first log transmission instruction; 
 transmitting the compressed first log to the device provided outside of the vehicle; 
 reversibly compressing the second log in accordance with the second log transmission instruction; and 
 transmitting the compressed second log to the device provided outside of the vehicle. 
 
     
     
       7. The information processing device according to  claim 1 , wherein the second log and the first log are generated by a log generating circuit in the vehicle. 
     
     
       8. The information processing device according to  claim 7 ,
 wherein the second log includes communication data that includes a plurality of identifiers, 
 the first log includes communication data that includes one or more identifiers of the plurality of identifiers, and 
 the log generating circuit generates identifying information to identify the one or more identifiers. 
 
     
     
       9. The information processing device according to  claim 7 , further comprising:
 the log generating circuit, 
 wherein the log generating circuit obtains the communication data from the onboard network and generates the second log and the first log in accordance with the communication data. 
 
     
     
       10. The information processing device according to  claim 7 , wherein the operations further include:
 generating a change instruction to cause the log generating circuit to change the unit time. 
 
     
     
       11. The information processing device according to  claim 10 , wherein the operations further include:
 outputting, in the case of the detection results indicating the abnormality is included in the communication data, the change instruction to the log generating circuit to shorten the unit time. 
 
     
     
       12. The information processing device according to  claim 10 , wherein the operations further include:
 outputting, in a case of the detection results not indicating the abnormality is included in the communication data, the change instruction to the log generating circuit to lengthen the unit time. 
 
     
     
       13. The information processing device according to  claim 10 ,
 wherein the unit time is set for each of multiple identifiers in the communication data, and 
 the operations further include:
 outputting, in the case of the detection results indicating the abnormality is included in the communication data regarding one identifier of the multiple identifiers in the communication data, the change instruction to the log generating circuit to shorten the unit time, with regard to the multiple identifiers in the communication data. 
 
 
     
     
       14. The information processing device according to  claim 10 , wherein the operations further include:
 outputting the change instruction to the log generating circuit to randomly change the time unit. 
 
     
     
       15. The information processing device according to  claim 10 , wherein the operations further include:
 obtaining an external instruction regarding the unit time from the device provided outside of the vehicle; and 
 outputting the change instruction to the log generating circuit to change the unit time, in accordance with the external instruction obtained from the device provided outside of the vehicle. 
 
     
     
       16. The information processing device according to  claim 10 ,
 wherein the unit time is set for each of multiple identifiers in the communication data, and 
 the operations further include:
 outputting, in the case of the detection results indicating the abnormality is included in the communication data regarding one identifier of the multiple identifiers in the communication data, the change instruction to the log generating circuit to shorten the unit time, with regard to the one identifier. 
 
 
     
     
       17. The information processing device according to  claim 16 , wherein the operations further include:
 outputting, after the change instruction is output to the log generating circuit to shorten the unit time and in a case of the detection results not indicating the abnormality is included in the communication data, the change instruction to the log generating circuit to lengthen the unit time that had been shortened. 
 
     
     
       18. The information processing device according to  claim 16 , wherein the operations further include:
 outputting the change instruction to the log generating circuit to linearly change the time unit. 
 
     
     
       19. An information processing method for an information processing device in a vehicle, the information processing method comprising:
 obtaining detection results that indicate whether an abnormality is included in communication data flowing through an onboard network of the vehicle; 
 generating a first log transmission instruction to cause periodic transmission of a first log from an onboard system in the vehicle to a device provided outside of the vehicle, the first log including, per unit time, some communication data out of all of the communication data flowing through the onboard network; and 
 generating a second log transmission instruction to cause transmission of a second log from the onboard system in the vehicle to the device provided outside of the vehicle in a case of the detection results indicating the abnormality is included in the communication data, the second log including, per unit time, more communication data out of all of the communication data than the first log, 
 wherein the first log includes the some communication data from intermittent periods, and 
 the second log includes the more communication data from continuous periods.